18957750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 56788992

約数和(自身を除く): 37831242

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 25, 30, 35, 42, 46, 50, 69, 70, 75, 105, 115, 125, 138, 150, 157, 161, 175, 210, 230, 250, 314, 322, 345, 350, 375, 471, 483, 525, 575, 690, 750, 785, 805, 875, 942, 966, 1050, 1099, 1150, 1570, 1610, 1725, 1750, 2198, 2355, 2415, 2625, 2875, 3297, 3450, 3611, 3925, 4025, 4710, 4830, 5250, 5495, 5750, 6594, 7222, 7850, 8050, 8625, 10833, 10990, 11775, 12075, 16485, 17250, 18055, 19625, 20125, 21666, 23550, 24150, 25277, 27475, 32970, 36110, 39250, 40250, 50554, 54165, 54950, 58875, 60375, 75831, 82425, 90275, 108330, 117750, 120750, 126385, 137375, 151662, 164850, 180550, 252770, 270825, 274750, 379155, 412125, 451375, 541650, 631925, 758310, 824250, 902750, 1263850, 1354125, 1895775, 2708250, 3159625, 3791550, 6319250, 9478875, 18957750]

約数ペア:

[(1, 18957750), (2, 9478875), (3, 6319250), (5, 3791550), (6, 3159625), (7, 2708250), (10, 1895775), (14, 1354125), (15, 1263850), (21, 902750), (23, 824250), (25, 758310), (30, 631925), (35, 541650), (42, 451375), (46, 412125), (50, 379155), (69, 274750), (70, 270825), (75, 252770), (105, 180550), (115, 164850), (125, 151662), (138, 137375), (150, 126385), (157, 120750), (161, 117750), (175, 108330), (210, 90275), (230, 82425), (250, 75831), (314, 60375), (322, 58875), (345, 54950), (350, 54165), (375, 50554), (471, 40250), (483, 39250), (525, 36110), (575, 32970), (690, 27475), (750, 25277), (785, 24150), (805, 23550), (875, 21666), (942, 20125), (966, 19625), (1050, 18055), (1099, 17250), (1150, 16485), (1570, 12075), (1610, 11775), (1725, 10990), (1750, 10833), (2198, 8625), (2355, 8050), (2415, 7850), (2625, 7222), (2875, 6594), (3297, 5750), (3450, 5495), (3611, 5250), (3925, 4830), (4025, 4710)]